The P914-3CCSF from Carlisle Interconnect Technologies is a In Series RF Adapter with Frequency DC to 40 GHz, Connector Inner Diameter 0.125 Inch, Connector Length 0.50 Inch, Insertion Loss 0.63 dB, Insulation Resistance 5000 MOhms. More details for P914-3CCSF can be seen below.